REC5-243.3SRWZ/H6/A/SMD-R

Current - Output (Max):	1A
Size / Dimension:	1.26" L x 0.78" W x 0.44" H (32.0mm x 19.9mm x 11.2mm)
Package / Case:	24-SMD Module, 18 Leads
Mounting Type:	Surface Mount
Efficiency:	76%
Operating Temperature:	-40°C ~ 75°C
Features:	SCP
Applications:	ITE (Commercial), Medical
Voltage - Isolation:	6kV
Power (Watts):	5W
Series:	ECONOLINE REC5
Voltage - Output 3:	--
Voltage - Output 2:	--
Voltage - Output 1:	3.3V
Voltage - Input (Max):	36V
Voltage - Input (Min):	9V
Number of Outputs:	1
Type:	Isolated Module
Part Status:	Active
Packaging:	Tape & Reel (TR)

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DC DC Converters: REC5-243.3SRWZ/H6/A/SMD-R Application Field and Working Principle

DC-DC converters are used to convert a DC voltage supply from one voltage level to another voltage level. The REC5-243.3SRWZ/H6/A/SMD-R is an example of such a converter that is commonly used to convert a 3.3 V or 5 V supply to a higher voltage level such as 12 V, 15 V, or 24 V. This DC DC converter utilizes a control IC and magnetic components to control the output voltage level, and is designed for a wide input voltage range and high efficiency.

Overview of the REC5-243.3SRWZ/H6/A/SMD-R

The REC5-243.3SRWZ/H6/A/SMD-R is a non-isolated, single output, DC-DC converter suitable for a wide input voltage range of 4.5 ~ 36 Vdc, and can output a maximum voltage of 24 Vdc. It has a power density of 2.5W/cubic inch (1.27 cm3) and a high efficiency of up to 95%, with a high current output capability. The package size is 4.2X2.4X1.0 mm, and the minimum load current for stable regulation is 2.5 mA. The input surge current capability is 1A, and the operating temperature range is -40°C to 85°C.

Working Principle

The REC5-243.3SRWZ/H6/A/SMD-R DC-DC converter utilizes a Pulse Width Modulation (PWM) technique to convert the input voltage to the desired output voltage level. The control IC is used to maintain the set output voltage level by controlling the duty cycle of the PWM signal. The input voltage is stepped up or down by a voltage-mode control feedback loop, which sensing of output voltage level and controlling the switching frequency. The converter has an integrated transformer, which isolates the input and output to reduce noise and interference between the two sides. The transformer is composed of a primary side magnetic core and a secondary side magnetic core, which can efficiently transfer power between input and output sides. The resulting current transform between the primary and secondary side is determined by the turns ratio of the magnetic core. The converter has multiple protection features including over-voltage protection, over-current protection, over-temperature protection and short-circuit protection. These are designed to protect the converter from damage caused by incorrect wiring and excess current by either terminating the output, shutting down the output, or limiting the output voltage based on the over-current or over-voltage condition.

Applications

The REC5-243.3SRWZ/H6/A/SMD-R provides a wide input voltage range, high efficiency and small size, and is suitable for many power management applications such as mobile phones, radios, digital cameras, computers, and any other electronics that require multiple power supplies. It is also suitable for power management solutions including Point of Load (PoL), LED drivers, and battery chargers. The converter is primarily used for applications that require tight regulation and high accuracy, such as in medical and mission critical applications. It can also be used to power multiple load voltages, such as in multi-rail power management solutions where different voltages are needed in order to power different components.

Conclusion

The REC5-243.3SRWZ/H6/A/SMD-R DC-DC converter is an efficient, high performance, and compact converter suitable for a wide variety of power management applications. It utilizes a PWM control IC and magnetic components to regulate the output voltage level, with wide input voltage range and high efficiency. The integrated transformer provides isolation and noise reduction between the input and output sides, and provides protection against over-current and over-voltage conditions. The converter is suitable for high accuracy applications in medical and mission critical systems, and is also suitable for use in multi-rail power management solutions.

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